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From: Jacob Pan <jacob.jun.pan@linux.intel.com>
To: LKML <linux-kernel@vger.kernel.org>,
	iommu@lists.linux-foundation.org, Joerg Roedel <joro@8bytes.org>,
	"Lu Baolu" <baolu.lu@linux.intel.com>,
	Jean-Philippe Brucker <jean-philippe@linaro.com>
Cc: "Tian, Kevin" <kevin.tian@intel.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Raj Ashok <ashok.raj@intel.com>,
	vkoul@kernel.org, Christoph Hellwig <hch@infradead.org>,
	Jason Gunthorpe <jgg@nvidia.com>,
	zhangfei.gao@linaro.org
Subject: [PATCH v4 0/2] Simplify and restrict IOMMU SVA APIs
Date: Mon, 10 May 2021 06:25:06 -0700
Message-ID: <1620653108-44901-1-git-send-email-jacob.jun.pan@linux.intel.com> (raw)

A couple of small changes to simplify and restrict SVA APIs. The motivation
is to make PASID allocation palatable for cgroup consumptions. Misc cgroup
is merged for v5.13, it can be extended for IOASID as another scalar
resource.

I have not tested on ARM platforms due to availability. Would appreciate
if someone could help with the testing on uacce based SVA usages.

Thanks,

Jacob

ChangeLog:
V4	- fixed a cross-compile error
	- rebased to v5.13-rc1 resolved a conflict in intel-svm code

V3	- stop passing mm to sva_bind IOMMU ops, no need to take mm refcount
	in the common SVA code.
	- deleted flag variable in idxd driver

V2
	- retained mm argument in iommu_sva_alloc_pasid()
	- keep generic supervisor flag separated from vt-d's SRE
	- move flag declaration out of CONFIG_IOMMU_API



Jacob Pan (2):
  iommu/sva: Tighten SVA bind API with explicit flags
  iommu/sva: Remove mm parameter from SVA bind API

 drivers/dma/idxd/cdev.c                       |  2 +-
 drivers/dma/idxd/init.c                       |  7 ++----
 .../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c   | 12 ++++++----
 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h   |  5 ++--
 drivers/iommu/intel/svm.c                     | 19 ++++++++-------
 drivers/iommu/iommu-sva-lib.c                 | 11 +++++----
 drivers/iommu/iommu-sva-lib.h                 |  2 +-
 drivers/iommu/iommu.c                         | 13 +++++------
 drivers/misc/uacce/uacce.c                    |  2 +-
 include/linux/intel-iommu.h                   |  3 +--
 include/linux/intel-svm.h                     | 12 ----------
 include/linux/iommu.h                         | 23 ++++++++++++++-----
 12 files changed, 54 insertions(+), 57 deletions(-)

-- 
2.25.1

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Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 13:25 Jacob Pan [this message]
2021-05-10 13:25 ` [PATCH v4 1/2] iommu/sva: Tighten SVA bind API with explicit flags Jacob Pan
2021-05-10 23:37   ` Jason Gunthorpe
2021-05-11  3:31     ` Jacob Pan
2021-05-11 11:48       ` Jason Gunthorpe
2021-05-11 16:14         ` Jacob Pan
2021-05-11 16:35           ` Jason Gunthorpe
2021-05-11 18:05             ` Jacob Pan
2021-05-11 19:47               ` Jason Gunthorpe
2021-05-12  6:37                 ` Christoph Hellwig
2021-05-13 13:00                   ` Jacob Pan
2021-05-13 13:38                     ` Jason Gunthorpe
2021-05-13 15:10                       ` Jacob Pan
2021-05-13 16:44                         ` Luck, Tony
2021-05-13 17:33                           ` Jason Gunthorpe
2021-05-13 18:53                             ` Luck, Tony
2021-05-13 19:00                               ` Jason Gunthorpe
2021-05-13 19:14                                 ` Luck, Tony
2021-05-13 19:20                                   ` Jason Gunthorpe
2021-05-13 19:46                                     ` Jacob Pan
2021-05-13 19:57                                       ` Luck, Tony
2021-05-13 20:22                                         ` Jacob Pan
2021-05-13 22:31                                           ` Jason Gunthorpe
2021-05-13 23:40                                             ` Jacob Pan
2021-05-17 14:37                                               ` Jason Gunthorpe
2021-05-19 15:46                                                 ` Jacob Pan
2021-05-12 10:18   ` Jean-Philippe Brucker
2021-05-10 13:25 ` [PATCH v4 2/2] iommu/sva: Remove mm parameter from SVA bind API Jacob Pan
2021-05-12 10:24   ` Jean-Philippe Brucker

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